Problem with subtitles, Convertxtodvd

I've been meaning to make a dvd of my show but when I have the power to do so now I hit another wall.

When I extracted the subtitles from my one video and loaded the file to convertx everything was going good up to the point where I had to add the subtitles. I loaded the subs to it but then I noticed something strange:
If I burn this does that mean that I will have 11 subs to chose from? Cause when I checked the file in VLC Media Player it said it only has 1 sub track and thats english, but when its loaded into convertx does that mean that the sub tracks have been divided form the normal 1 subtitle track that I seen from vlc? I also notice in vurtualdubmod that it comes back with an error also:
"[!] MKV: Subtitle stream (4) contains overlapping subtitles. Some of them may
not be kept when editing."

Anyway to fix this or am I doomed

Edit: used MKVextractGUI to extract the subs from the .mkv video.

Edit 2: Ok, I used Virtualdubmod again and I extracted the subtitles as a .srt and when I added that .srt subs to convertx, I get a normal "[en] Track 4, External SRT". When I check it, it says "English[en] language, ''Default,(ANSI - Latin I)'' rendering style,318 entries". So the subs will show up normal when I use V.dubmod and extract the subs as .srt? I dont have to worry about multi sub tracks like I did when I first post?